Concrete-mixer.



J. W. STUART. CONCRETE MIXER. APPLICATION FILED APR.26,190 9.

930,900. Pat elited Aug. 10,1909.

MN. I, mm m, HIOIO-LIMGMPHERYS. WASNINGYON. n c.

- held suitably separated. The stationary .IAMES W. STUART, OF FREEPORT,ILLINOIS.

CONCRETE-MIXER.

Specification of Letters Patent.

Patented Aug. 10, 1909.-

Application filed April 26, 1909. Serial No. 492,425.

To all whom it may concern:

Be it known that I, JAMEs W. STUART, a citizen of the United States,residing at Freeport, in the county of Stephenson and State of Illinois,have invented certain new and useful Improvements in Concrete-Mixers, ofwhich the following in a specification.

The object of this invention is to construct a concrete mixer in whichthe sand or gravel and cement are fed onto the center of a revolving panand which isworked toward the periphery of the pan by suitabledeflecting plates and centrifugal force, the pan having an upturned edgeand a plate adapted to carry the mixture up the upturned edge and freeof the pan.

In the accompanying drawings, Figure 1 is a plan View of a concretemixer containing my improvements. Fig. 2 is a plan new of the rotatablepan in which thede fleeting plates arelocated in position there-' on.Fig. 3 is a vertical section on dotted line a a Fig. 1.

My improved concrete mixer comprises. a stationary plate 1, and arotatable pan 2 plate 1 supports a yoke? which form bearings for thehorizontally arranged shaft 5 which is drivingly connected to avertically arranged shaft 1 by the miter gears 6. This vertical shaftextends through the station ary plate 1 and has a fixed connectionwiththe rotatable pan 2, so that the pan can be revolved by the handle 7 orpower con: nected with the horizontal shaft 5.

The stationary plate 1 has a spout 8 extending through it through whichsand and gravel is fed onto the center of the pan, and a spout 9 alsoextends through the stationary plate and through which cement isdelivered onto the center of the pan. The rotatable pan 2 has its center10 elevated and also has an inclined rim 11. 1

To the stationary plate 1- are connected anumber of deflecting plates 12arranged around the elevated center of the pan and each tending to movethe sand and cement toward the center'of the pan. A deflectingv plate 13is secured to the stationary plate and set'to move the sand and cement.out

mold board plow form. These double deflecting plates are connected tothe stationary plate and are capable of being turned axially to presentthe faces thereof at varying angles to the material supported by thepan.

A delivering plate 15 is connected to the stationary plate and islocated in contact with the inclined rim, and is made adjustable bymeans of a slot 16 and bolt 17 so that it may be moved radially withrespect to the pan so as to extend over the full width of the edging orany part thereof from its periphery inward. The pan is rotated by meansof the handle or power applied thereto, the rapidity of the rotation issuflicient to move the sand and cement toward the beveled edging of thepan. The material being fed onto the crowning center of the pan will bemoved toward the center by the deflecting plates 12 until the deflectingplate .13 is reached, which owing to its tangential position withrespect to the crowning center, will move the mixture onto the flat orbottom portion of the pan. The deflecting plates l l will move themixture toward and from the center of the pan until the rim 11 isreached, when the delivering deflecting plate 15 will cause the mixtureto be discharged over the rim into a suitable receptacle. The deflectingplates serve to thoroughly mix the sand or gravel and cement together towhich is added the proper quantity of water. I have not deemd itnecessary to show the water connections as such is well known.

Adjacent to the inner edge of the rim are located deflecting plates 19which serve to move the mixture inward from the rim, to more thoroughlymix the ingredients.

I claim as my invention.

1. In a concrete mixer, the combination of a stationary plate,deflecting plates supported by the stationary plate, a rotatable panlocated beneath the stationary plate and having an outwardly inclinedrim, and a discharging deflector contacting with the inner surface ofthe rim and' located diagonally across it.

2. In a concrete mixer, the combination of a stationary plate,deflecting plates supported by the stationary plate, a rotatable panlocated beneath the stationary. plate, the

pan formed with an oval crowning center and an outwardly inclined rim, adischarging deflector contacting-with the inner surface of the rim andlocated diagonally In testimony whereof I have hereunto set my hand inpresence of two subscrlbmg \vltnes'ses. 7

JAMES STUART. \Vitnesses A. O. BEI'IEL, E. D. E. N. BEHEL.

